Home / 11,986.76-16,542.26-6,681.76

Finding the Fourth Proportional to 11,986.76, 16,542.26 and 6,681.76

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Solution

The fourth proportional to 11,986.76, 16,542.26 and 6,681.76 is: 9,221.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.76 : 16,542.26 = 6,681.76 : x
  2. Step 2: Convert to fraction form
    11,986.76/16,542.26 = 6,681.76/x
  3. Step 3: Cross multiply
    11,986.76x = 16,542.26 × 6,681.76
  4. Step 4: Simplify right side
    11,986.76x = 110,531,411.18
  5. Step 5: Solve for x
    x = 110,531,411.18/11,986.76
  6. Step 6: Final answer
    x = 9,221.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.